Try the naive fix to get @glimmer/component back into api docs

(cherry picked from commit 5794c9d)

Author: kategengler

yuidoc.json

@@ -10,7 +10,8 @@
       "packages/ember-testing/lib",
       "node_modules/rsvp/lib",
       "packages/@ember",
-      "packages/@ember/-internals"
+      "packages/@ember/-internals",
+      "packages/@glimmer"
     ],
     "exclude": "vendor",
     "outdir":   "docs",